m68k: add qemu virt support, seems more reliable at the moment then q800

mk/image.mk

@@ -171,7 +171,6 @@ ${STAGING_TARGET_DIR}/${INITRAMFS}_list: ${TARGET_DIR}/.adk
 		echo "nod /dev/random 0666 0 0 c 1 8"; \
 		echo "nod /dev/urandom 0666 0 0 c 1 9"; \
 		echo "nod /dev/ttyS0 0660 0 0 c 4 64"; \
-		echo "nod /dev/ttyS1 0660 0 0 c 4 65"; \
 		echo "nod /dev/ttysclp0 0660 0 0 c 4 65"; \
 		echo "nod /dev/ttyB0 0660 0 0 c 11 0"; \
 		echo "nod /dev/ttyB1 0660 0 0 c 11 1"; \
@@ -184,6 +183,7 @@ ${STAGING_TARGET_DIR}/${INITRAMFS}_list: ${TARGET_DIR}/.adk
 		echo "nod /dev/ttyBF1 0660 0 0 c 204 65"; \
 		echo "nod /dev/ttyUL0 0660 0 0 c 204 187"; \
 		echo "nod /dev/ttyUL1 0660 0 0 c 204 188"; \
+		echo "nod /dev/ttyGF0 0660 0 0 c 254 0"; \
 		echo "slink /init /sbin/init 755 0 0"; \
 	) >>$@
 

target/config/Config.in.qemuopts

@@ -42,6 +42,7 @@ depends on ADK_TARGET_QEMU && (ADK_TARGET_SYSTEM_QEMU_X86_64 \
 				|| ADK_TARGET_SYSTEM_QEMU_X86 \
 				|| ADK_TARGET_SYSTEM_QEMU_AARCH64 \
 				|| ADK_TARGET_SYSTEM_QEMU_ARC \
+				|| ADK_TARGET_SYSTEM_QEMU_M68K_VIRT \
 				|| ADK_TARGET_SYSTEM_QEMU_SPARC64)
 
 choice 
@@ -96,9 +97,10 @@ prompt "Qemu Emulation using VirtIO drivers"
 depends on ADK_TARGET_SYSTEM_QEMU_SPARC64 || \
 		ADK_TARGET_SYSTEM_QEMU_AARCH64 || \
 		ADK_TARGET_SYSTEM_QEMU_ARC || \
+		ADK_TARGET_SYSTEM_QEMU_CSKY || \
+		ADK_TARGET_SYSTEM_QEMU_M68K_VIRT || \
 		ADK_TARGET_SYSTEM_QEMU_RISCV32 || \
 		ADK_TARGET_SYSTEM_QEMU_RISCV64 || \
-		ADK_TARGET_SYSTEM_QEMU_CSKY || \
 		ADK_TARGET_SYSTEM_QEMU_X86 || \
 		ADK_TARGET_SYSTEM_QEMU_X86_64
 default ADK_TARGET_QEMU_WITH_VIRTIO if ADK_TARGET_SYSTEM_QEMU_AARCH64
@@ -106,6 +108,7 @@ default ADK_TARGET_QEMU_WITH_VIRTIO if ADK_TARGET_SYSTEM_QEMU_ARC
 default ADK_TARGET_QEMU_WITH_VIRTIO if ADK_TARGET_SYSTEM_QEMU_CSKY
 default ADK_TARGET_QEMU_WITH_VIRTIO if ADK_TARGET_SYSTEM_QEMU_RISCV32
 default ADK_TARGET_QEMU_WITH_VIRTIO if ADK_TARGET_SYSTEM_QEMU_RISCV64
+default ADK_TARGET_QEMU_WITH_VIRTIO if ADK_TARGET_SYSTEM_QEMU_M68K_VIRT
 
 config ADK_TARGET_QEMU_WITHOUT_VIRTIO
 	bool "disabled"

target/config/Config.in.runtime

@@ -376,6 +376,7 @@ config ADK_RUNTIME_CONSOLE_SERIAL_DEVICE
 	default "ttyO0" if ADK_TARGET_SYSTEM_PHYTEC_WEGA
 	default "ttyS4" if ADK_TARGET_SYSTEM_IMGTEC_CI20
 	default "ttySTM0" if ADK_TARGET_SYSTEM_ST_STM32F746G
+	default "ttyGF0" if ADK_TARGET_SYSTEM_QEMU_M68K_VIRT
 	default "ttyS0"
 
 config ADK_RUNTIME_CONSOLE_SERIAL_SPEED

target/linux/Config.in

@@ -21,6 +21,7 @@ source target/linux/config/Config.in.crypto
 source target/linux/config/Config.in.misc
 source target/linux/config/Config.in.arc
 source target/linux/config/Config.in.arm
+source target/linux/config/Config.in.m68k
 source target/linux/config/Config.in.mips
 source target/linux/config/Config.in.xtensa
 source target/linux/config/Config.in.pm

target/linux/config/Config.in.m68k

@@ -0,0 +1,14 @@
+# This file is part of the OpenADK project. OpenADK is copyrighted
+# material, please see the LICENCE file in the top-level directory.
+
+config ADK_LINUX_KERNEL_M68020
+	bool
+	default y if ADK_TARGET_CPU_M68K_68020
+
+config ADK_LINUX_KERNEL_M68040
+	bool
+	default y if ADK_TARGET_CPU_M68K_68040
+
+config ADK_LINUX_KERNEL_M68KFPU_EMU
+	bool
+	default y if ADK_TARGET_CPU_M68K_68040

target/m68k/Makefile

@@ -8,6 +8,12 @@ include $(ADK_TOPDIR)/mk/image.mk
 KERNEL:=$(LINUX_DIR)/vmlinux
 
 QEMU_ARGS:=${ADK_QEMU_ARGS}
+ifeq ($(ADK_TARGET_SYSTEM_QEMU_M68K_VIRT),y)
+QEMU_ARGS+=-M virt -netdev user,id=eth0 -device virtio-net-device,netdev=eth0
+ifeq ($(ADK_TARGET_FS),archive)
+QEMU_ARGS+=-append "rootwait root=/dev/vda1 ro" -drive file=qemu-m68k.img,format=raw,id=hd0 -device virtio-blk-device,drive=hd0
+endif
+endif
 ifeq ($(ADK_TARGET_SYSTEM_QEMU_M68K_Q800),y)
 QEMU_ARGS+=-M q800
 endif
@@ -24,9 +30,13 @@ ifeq ($(ADK_TARGET_QEMU),y)
 	@echo "Use following command to create a QEMU Image:"
 	@echo "./scripts/create.sh qemu-${ADK_TARGET_CPU_ARCH}.img $(FW_DIR)/$(ROOTFSUSERTARBALL)"
 	@echo "Start qemu with following options:"
+ifeq ($(ADK_TARGET_SYSTEM_QEMU_M68K_VIRT),y)
+	@echo 'qemu-system-${ADK_TARGET_CPU_ARCH} ${QEMU_ARGS} -kernel $(FW_DIR)/$(TARGET_KERNEL)'
+else
 	@echo 'qemu-system-${ADK_TARGET_CPU_ARCH} ${QEMU_ARGS} -kernel $(FW_DIR)/$(TARGET_KERNEL) qemu-${ADK_TARGET_CPU_ARCH}.img'
 endif
 endif
+endif
 ifeq ($(ADK_TARGET_FS),initramfs)
 targethelp:
 	@echo 'The kernel file is: $(FW_DIR)/${TARGET_KERNEL}'

target/m68k/kernel/qemu-m68k-virt

@@ -0,0 +1,3 @@
+CONFIG_M68K=y
+CONFIG_VIRT=y
+CONFIG_COMPAT_32BIT_TIME=y

target/m68k/systems/qemu-m68k-virt

@@ -0,0 +1,9 @@
+config ADK_TARGET_SYSTEM_QEMU_M68K_VIRT
+	bool "Qemu M68K (virt)"
+	select ADK_TARGET_QEMU
+	select ADK_TARGET_WITH_MMU
+	select ADK_TARGET_KERNEL_ZIMAGE
+	select ADK_TARGET_KERNEL_WITH_COMPRESSION
+	help
+	  Support for Qemu Emulator with M68K architecture (virt). 
+